Lots of people use ovulation predictor kits here on the bee. There’s a ton of different kinds, but I think most of us use cheapies from amazon – wondfo. They’re ALOT less expensive than other brands – more “no frills”

keep in mind that OPKs are not like pregnancy tests though – a line is not a line. It has to be as dark or darker than the test line to be positive.

I just purchased some Wondfos on Amazon. It will be my first cycle using them. MrsPuddingface wrote a really interesting blurb in her TTC-What to Expect thread at the top of the TTC boards. The information on their along, with the link were realy informative. Goodluck!

For most women, they seem to work. I’ve seen a couple of ladies on here, though, who conceived in cycles where they never got a positive OPKs. The trick is to catch your LH surge. The best way to do that is to start testing early in your fertile period, and test a few times a day (early afternoon and early evening are good) if you can. That way there’s a better chance to catch the surge because it can be very short. Don’t use first morning urine to test because it’s too concentrated and can give you a false positive. Do try to hold your urine for 3-4 hours to make sure it’s concentrated enough to give you an accurate result (try not to drink much during this time either). I’ve used the cheapish Target brand OPKs and didn’t like them… too many false positives. I’ve used the expensive digital ones, the ones with the smiley faces, also. They’re nice because they’re very definite, but they’re also expensive, and the cost is prohibitive if you want to test a lot. Now I’m using the cheap wondfo ones from Amazon, and I think they’re pretty good.

My dr had some great advice – she suggested using them for a few months but stop using them after a few “positive ovulation result” months because 1) it is a waste of money (unless you have wondfos laying around!) and 2) it is a waste of time (testing must be done at the same times everyday). Once you know via a few months of OPK testing, you don’t need to test anymore.